iOS Question Problem starting B4i v5.81

Erel

B4X founder

Staff member

Licensed User

Longtime User

• Jun 21, 2019

• #2

Have you tried to reinstall it in a new folder?

Worth enabling IDE logs: https://www.b4x.com/android/forum/posts/50478/

 

Upvote 0

J

JohnCLB

Member

Licensed User

• Jun 21, 2019

• #3

Thanks for the tips, Erel.

One of the advantages of running on a virtual machine is that ability to snapshot. Luckily I did this before upgrading. I restored the snapshot, made a new directory and installed version 5.81 into that. Running the new version had the same results. I then re-ran it from the command like with the "-log" switch on. I killed the process after a while and saved the log (attached).

The problem seems to be a NullReferenceException, viz:

System.NullReferenceException: Object reference not set to an instance of an object.
at z.b(Int32 A_0, Object A_1)

The B4i v5.5 still works ok.
Any ideas?

 

Attachments

• log.txt.zip

  9.4 KB · Views: 228

Upvote 0

Erel

B4X founder

Staff member

Licensed User

Longtime User

• Jun 23, 2019

• #4

I see where it happens. It looks like a low level issue. Do you get the same error if you run the latest version of B4J?

 

Upvote 0

J

JohnCLB

Member

Licensed User

• Jun 24, 2019

• #5

Yes, indeed you do!
I tried running it from the command like with the -log switch and it too produced a log file which I have attached.

 

Attachments

• log.txt.zip

  4.1 KB · Views: 230

Upvote 0

Erel

B4X founder

Staff member

Licensed User

Longtime User

• Jun 25, 2019

• #6

Please try to disable the auto bookmarks feature: https://www.b4x.com/android/forum/threads/b4i-v5-81-has-been-released.106661/#post-667887
It will probably won't help but still worth a try.

 

Upvote 0

J

JohnCLB

Member

Licensed User

• Jun 27, 2019

• #7

Presuming that you meant:
To disable the auto-bookmarks:
1. Close the IDE.
2. Edit: C:\Users\<user name>\AppData\Roaming\Anywhere Software\B4i\b4xV5.ini
3. Set ShowAutoBookmarks to False.

I don't have that field in the file...

 

Upvote 0

Erel

B4X founder

Staff member

Licensed User

Longtime User

• Jun 27, 2019

• #8

I see. The IDE was never closed properly so the field is not there. However I don't think that it will help so don't bother adding it.

A beta of B4A is planned to be released next week. This will be an opportunity to further debug this issue. In the meantime you should try to change the display driver settings or other settings of the VM.

 

Upvote 0

J

JohnCLB

Member

Licensed User

• Jun 27, 2019

• #9

I will certainly try it out but B4A v9.0 works perfectly.

 

Upvote 0

Erel

B4X founder

Staff member

Licensed User

Longtime User

• Jun 28, 2019

• #10

Another thing to try is to update .Net Framework.

 

Upvote 0

J

JohnCLB

Member

Licensed User

• Jun 30, 2019

• #11

The world is a happy place again. Very many thanks Erel. I updated the .Net framework to the latest version (4.7.2) and B4i magically started working. Even more surprising was that (using B4iBuildServer 5.8), I could now start building on my MacBook again! I still lose my Google account password from the keychain but at least it works so I can carry on with my real job.

The moral of this story is: Keep the infrastructure up to date!
Thanks again,
John.

 

Upvote 0